A thin circular ring of mass M and radius r is rotating about its axis with a constant angular velocity ω. Two object each of mass m are attached gently to the opposite ends of a diameter of the ring. The ring will now rotate with an angular velocity

Q: A thin circular ring of mass M and radius r is rotating about its axis with a constant angular velocity ω. Two object each of mass m are attached gently to the opposite ends of a diameter of the ring. The ring will now rotate with an angular velocity

(a) $ \omega \frac{M – 2m}{M + 2m} $

(b) $\frac{\omega M }{M + 2m} $

(c) $\frac{\omega M }{M + m} $

(d) $ \frac{( \omega M + 2m )}{M } $

Ans: (b)